/Engine/Plugins/Importers/USDImporter/Source/USDExporter/Public/USDConversionBlueprintLibrary.h
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="Layer utils") static void AddPayload ( const [FString](API\Runtime\Core\Containers\FString) & ReferencingStagePath, const [FString](API\Runtime\Core\Containers\FString) & ReferencingPrimPath, const [FString](API\Runtime\Core\Containers\FString) & TargetStagePath )